API 5L pipe manufacturer – Reliable Suppliers in China

How to Identify a reliable   API 5L Pipe manufacturer in china Finding a reliable API 5L pipe manufacturer in China can be a daunting task. With so many manufacturers to choose from, it can be difficult to know which one is the best fit for your project. However, with a few simple steps, you can…

How to Identify a reliable  API 5L Pipe manufacturer in china

Finding a reliable API 5L pipe manufacturer in China can be a daunting task. With so many manufacturers to choose from, it can be difficult to know which one is the best fit for your project. However, with a few simple steps, you can identify a reliable API 5L pipe manufacturer in China that will provide you with quality products and services.

First, research the manufacturer’s reputation. Look for reviews from past customers and industry experts to get an idea of the quality of their products and services. Also, check to see if the manufacturer is certified by the American petroleum Institute (API). This certification ensures that the manufacturer meets the highest standards of quality and safety.

Chemical Composition, Mass Fraction (%)
grade   C Mn Mo Cr Ni Cu P S Si
  Type min max min max min max min max max max max max max
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
H40 0.03
J55 0.03
K55 0.03
N80 1 0.03 0.03
N80 Q 0.03 0.03
R95 0.45 c 1.9 0.03 0.03 0.45
L80 1 0.43 a 1.9 0.25 0.35 0.03 0.03 0.45
L80 9Cr 0.15 0.3 0.6 0.9 1.1 8 10 0.5 0.25 0.02 0.03 1
L80 13Cr 0.15 0.22 0.25 1 12 14 0.5 0.25 0.02 0.03 1
C90 1 0.35 1.2 0.25 b 0.85 1.5 0.99 0.02 0.03
T95 1 0.35 1.2 0.25 b 0.85 0.4 1.5 0.99 0.02 0.03
C110 0.35 1.2 0.25 1 0.4 1.5 0.99 0.02 0.03
P110 e 0.030 e 0.030 e
Q125 1 0.35   1.35 0.85 1.5 0.99 0.02 0.01
NOTE Elements shown shall be reported in product analysis.
a The carbon content for L80 may be increased up to 0.50 % maximum if the product is Oil-quenched or polymer-quenched.
b The molybdenum content for Grade C90 Type 1 has no minimum tolerance if the wall thickness is less than 17.78 mm.
c The carbon content for R95 may be increased up to 0.55 % maximum if the product is oil-quenched.
d The molybdenum content for T95 Type 1 may be decreased to 0.15 % minimum if the wall thickness is less than 17.78 mm.
e For EW Grade P110, the phosphorus content shall be 0.020 % maximum and the sulfur content 0.010 % maximum.

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Second, ask for samples of their products. This will give you an idea of the quality of the pipes they produce. Make sure to inspect the samples for any defects or inconsistencies.

Third, ask for a quote. Make sure to compare the prices of different manufacturers to ensure you are getting the best deal.

Chemical Composition, Mass Fraction (%)
Grade   C Mn Mo Cr Ni Cu P S Si
  Type min max min max min max min max max max max max max
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
H40 0.03
J55 0.03
K55 0.03
N80 1 0.03 0.03
N80 Q 0.03 0.03
R95 0.45 c 1.9 0.03 0.03 0.45
L80 1 0.43 a 1.9 0.25 0.35 0.03 0.03 0.45
L80 9Cr 0.15 0.3 0.6 0.9 1.1 8 10 0.5 0.25 0.02 0.03 1
L80 13Cr 0.15 0.22 0.25 1 12 14 0.5 0.25 0.02 0.03 1
C90 1 0.35 1.2 0.25 b 0.85 1.5 0.99 0.02 0.03
T95 1 0.35 1.2 0.25 b 0.85 0.4 1.5 0.99 0.02 0.03
C110 0.35 1.2 0.25 1 0.4 1.5 0.99 0.02 0.03
P110 e 0.030 e 0.030 e
Q125 1 0.35   1.35 0.85 1.5 0.99 0.02 0.01
NOTE Elements shown shall be reported in product analysis.
a The carbon content for L80 may be increased up to 0.50 % maximum if the product is oil-quenched or polymer-quenched.
b The molybdenum content for Grade C90 Type 1 has no minimum tolerance if the wall thickness is less than 17.78 mm.
c The carbon content for R95 may be increased up to 0.55 % maximum if the product is oil-quenched.
d The molybdenum content for T95 Type 1 may be decreased to 0.15 % minimum if the wall thickness is less than 17.78 mm.
e For EW Grade P110, the phosphorus content shall be 0.020 % maximum and the sulfur content 0.010 % maximum.

Finally, ask for references. Talk to other customers who have used the manufacturer’s products and services to get an idea of their experience.
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By following these steps, you can identify a reliable API 5L pipe manufacturer in China that will provide you with quality products and services. With the right manufacturer, you can be sure that your project will be completed on time and within budget.

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